Andrea G Brown

US Patent:

20210404956, Dec 30, 2021

Filed:

Sep 2, 2020

Appl. No.:

17/010007

Inventors:

- Baltimore MD, US
Kevin C. Baldwin - Baltimore MD, US
Andrea M. Brown - Ellicott City MD, US

International Classification:

G01N 21/53

Abstract:

An optical turbulence measurement system may include a camera assembly, a first optics assembly, a second optics assembly, and processing circuitry. The first optics assembly and the second optics assembly may be configured to magnify and direct a portion of a source beam received by a respective aperture to the camera assembly to be received as a two portions of a received beam. The processing circuitry may be configured to receive, from the camera assembly, a data representation of a first received beam from the first optics assembly and a second received beam from the second optics assembly, determine a focal spot displacement variance based on motion of a first focal spot corresponding to the first received beam relative to a second focal spot corresponding to the second received beam, and measure optical turbulence along a path of the source beam based on the focal spot displacement variance.

US Patent:

20150314625, Nov 5, 2015

Filed:

Apr 29, 2015

Appl. No.:

14/699064

Inventors:

- Baltimore MD, US
William E. Torruellas - Baltimore MD, US
David M. Brown - Baltimore MD, US
Andrea M. Brown - Baltimore MD, US

International Classification:

B41M 5/26
G02B 21/34

Abstract:

The present invention is directed to a device and a laser, eye-safe method for laser marking slides for use in conjunction with a light microscope. The device is an attachment for a light microscope that allows the operator to make marks on preparations of biological tissues or other materials placed on a glass slide or between a glass slide and a cover slip. The marks can be used to indicate or highlight a microscopic structure or feature of interest. The marking on the slide is performed as the specimen is examined, without having to remove it from the microscope stage. In this way the invention has application in a biomedical or pathology laboratory for diagnostic, research, archival, and teaching or training purposes.